<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <!--     <meta name="viewport" content="width=device-width, initial-scale=1.0">
 -->
    <title>bootstrap模板</title>
    <script type="text/javascript" src="js/jquery-1.12.4.js"></script>
    <script type="text/javascript" src="js/bootstrap.min.js"></script>
    <link rel="stylesheet" type="text/css" href="css/bootstrap.min.css">
    <script type="text/javascript">


    </script>
    <style type="text/css">
        div[class *='col-'] {
            height: 50px;
            background-color: gold;
            border: 1px solid #000000;
        }
    </style>

</head>

<body>

    <div class="container">
        <h1>栅格系统</h1>
    </div>
    <br>
    <br>
    <br>
    <div class="container">
        <div class="row">
            <div class="col-lg-3">col-lg-3</div>
            <div class="col-lg-4">col-lg-4</div>
            <div class="col-lg-2">col-lg-2</div>
            <div class="col-lg-3">col-lg-3</div>
        </div>
        <br>
        <br>
        <br>
        <div class="row">
            <div class="col-md-4">col-md-4</div>
            <div class="col-md-4">col-md-4</div>
            <div class="col-md-4">col-md-4</div>
        </div>
        <br>
        <br>
        <br>
        <div class="row">
            <div class="col-sm-3">col-sm-3</div>
            <div class="col-sm-3">col-sm-3</div>
            <div class="col-sm-3">col-sm-3</div>
            <div class="col-sm-3">col-sm-3</div>
        </div>
        <br>
        <br>
        <br>
        <div class="row">
            <div class="col-xs-5">col-xs-5</div>
            <div class="col-xs-3">col-xs-3</div>
            <div class="col-xs-2">col-xs-2</div>
            <div class="col-xs-2">col-xs-2</div>
        </div>
        <br>
        <br>
        <br>

    </div>

</body>

</html>